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Untitled - Sciencemadness Dot Org

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DETONATION PROPERTIES<br />

Explosive<br />

Table 3.30 COMPOSITION B ON BRASS<br />

RDX/TNT:^64.2 f 0.4 &% RDX: 1.714 f 0.002 g/cm’. Two 102- by.254- by 254-<br />

mm pieces to make a 203-mm length. P-080 booster, D = 3.127 p0 + 2.673 at 65 wt%<br />

RDX and increases 0.0134 km/s per 1 wt% RDX increase.<br />

Plates<br />

Brass.<br />

Analysis<br />

Shot<br />

No.<br />

a<br />

B<br />

a<br />

*<br />

*<br />

a<br />

a<br />

a<br />

8A 700<br />

8A 769<br />

8A 699<br />

8A 766<br />

Plate Plate Free-Surface<br />

Density Thickness Velocity<br />

k/cmY (mm) (km/sP<br />

8.402 1.97 2.124 zt 0.004<br />

8.402 3.76 2.068 f 0.008<br />

8.402 5.76 2.073 f 0.027<br />

8.402 7.68 2.037 f 0.019<br />

8.402 9.58 2.033 4~ 0.025<br />

8.402 11.49 2.008 h 0.015<br />

8.402 13.41 1.991 * 0.014<br />

8.402 15.32 1.969 f 0.012<br />

8.386 25.43 1.872 I!Z 0.010<br />

8.386 38.22 1.781 f 0.008<br />

8.386 48.38 1.717 zt 0.015<br />

8.386 48.93 1.711 f 0.017<br />

“Data for this entry were determined on some or all of the following<br />

shots: 7C-3, 8A-373, and BA-374; each was fired using several plate<br />

thicknesses.<br />

“Mean and standard deviation of five determinations on last four<br />

entries, three on the first six and the eighth, and two on the<br />

seventh.<br />

Linear least squares fitting gives Urs = 2.107 km/s - 0.00830 t (mm). At t = 0,<br />

plate U, = 5.173 km/s and P, = 45.36 GPa. Acoustic approximation with D = 8.002<br />

km/s, pox = 1.714 g/cm3, and porn = 8.395 g/cm3 gives corresponding explosive<br />

parameters of P, = 28.54 GPa, U,, = 2.081 km/s, and y = 2.845.<br />

264

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